Answer:
A) 28/39
Step-by-step explanation:

QR is congruent to PS
So if QR is 17.7 PS is 17.7
Answer 3.) PS equals 17.7
Answer:
1,79,07,120 ways
Step-by-step explanation:
Ways in which 3 solids can be chosen from 19 solids = 19 c 3
33 striped prints can be chosen from 99 striped prints in 9 c 3 ways
33 floral prints can be chosen from 121 floral prints in 12 c 33 ways
So, total ways = (19 c 3) (9 c 3) (12 c 3)
(969) (84) (220)
1,79,07,120
The waitress gets 45/75 = 3/5 of the tips
so waitress gets 3/5 * 350 = $210